Nginx Whitelist certain IP's

Note: This article assumes that you have installed Nginx on your server.

Prerequisites

An Nginx server.
Access to a Linux privileged user such as root.

Procedure

Login into your server via SSH and switch to root user.
```
su
```
Go to your Nginx site configuration.
```
cd /etc/nginx/sites-available
```
Open the configuration file where your site is located.

Note: This and the following steps may change depending on your configuration. We will assume that you are using the default one.
```
nano default
```
or
```
vim default
```

Add the following directives with your desire IP inside the server section.

server {
    allow 192.168.0.0; # here goes the IP you want to allow
    deny all;
    # ...
}

You can also write the directives inside the http section to apply it to multiple virtual hosts.

http {
    allow 192.168.0.0; # here goes the IP you want to allow
    deny all;
    
    server {
        server_name page1.rackspace.com;
        # ...
    }
    
    server {
        server_name page2.rackspace.com;
        # ...
    }
}

Save and close your file.
To save:
Ctrl + O
Enter

To exit:
Ctrl + X
Restart Nginx

Note: This step can change depending on your OS.
```
systemctl restart nginx
```

Updated about 1 year ago